Abstract: A fluid dispenser which enables one or two liquid mixture components to be selectively or simultaneously dispensed via a manually operable selection and actuation means. The said dispenser incorporates a body, one or more fluid storage and delivery channels, a selection and actuation disc operable to cause the release of a quantity of a stored fluid, as well as articulation and clamping means which support the said disc. One or more of the said fluid channels may be urged by said disc via cams to eject a fluid or fluids from corresponding cartridges. The present device provides a scale and pointer system which permits selection of a particular volume of a fluid for ejection in a first mode of operation, or selection of a specified mutual proportion of two fluids for ejection in a second mode of operation.

Abstract: An apparatus for dispensing a liquid into one or more cavities of one packaging shells for ophthalmic lenses, comprises a dispenser block, a dispenser head separate from the dispenser block. The apparatus further comprises one or more tubes connecting the dispenser block and the dispenser head. Additionally, the dispenser block comprises a reservoir for the liquid to be dispensed, and one or more dosing pumps for conveying the liquid from the reservoir to the dispenser head. The dispenser head comprises one or more dispensing tips detachably arranged on the dispenser head, each of the dispensing tips being in fluid communication with the dispenser block by a separate one of the one or more tubes.

Abstract: A tank collar has an adjustable mounting surface for a containment sump, such that the containment sump may be adjusted on the tank collar to be substantially plumb, even if the tank collar itself is not plumb. In particular, the containment sump wall is angularly adjustable with respect to the tank collar, which is fixed to an underground storage tank (UST). This angular adjustability facilitates a method of installation in which imperfect angular orientation of the tank collar and UST may be compensated for by angular adjustment of the containment sump wall. During and after such angular adjustment, a consistent seal between the containment sump wall and the tank collar is maintained, such as in the form of a continuous line of contact around the circumference of the interface between the tank collar and the containment sump wall.

Abstract: The invention relates to a method for producing a textile composite material with shrink properties, in particular heat shrink properties, preferably in the form of a shrinkable, in particular heat-shrinkable textile upholstery and/or covering material, preferably for seating furniture, to the textile composite material obtained therefrom and to the uses thereof.

Abstract: Disclosed is a method of fabricating a MEMS membrane structure. The method comprises: forming a silicon oxide film dam structure on a silicon substrate; depositing an adhesive layer and then forming a sacrificial layer; depositing a surface protective film on the sacrificial layer; etching the surface protective film and the sacrificial layer, thus forming trenches of first to third rows on the silicon oxide film dam structure; depositing a support film inside of the trenches of first to third rows and on the surface protective film of the sacrificial layer, thus forming a membrane; and removing the sacrificial layer disposed inside the support film deposited inside of the trench of first row, thus forming an empty space.

Abstract: A semiconductor package including a semiconductor die and at least one bondline positioned on the semiconductor die, the at least one bondline comprising a nickel lanthanide alloy diffusion barrier layer abutting a gold layer.

Abstract: A method of providing a MEMS device including a through-hole in a layer of structural material using a multitude of MEMS method steps. A versatile method to create a through-hole, in particular a multitude thereof, involves a step of exposing a polymeric layer of positive photoresist in a direction from the outer surface of the positive photoresist to light resulting in an exposed layer of positive photoresist including relatively strongly depolymerized positive photoresist in the top section of a recess while leaving relatively less strongly depolymerized positive photoresist in the bottom section of the recess.

Abstract: Among other things, hydrogen is released from water at a first location using energy from a first energy source; the released hydrogen is stored in a metal hydride slurry; and the metal hydride slurry is transported to a second location remote from the first location.

Abstract: The invention relates to a process for producing a converted synthesis gas from a crude synthesis gas comprising the essential synthesis gas constituents of hydrogen (H2) and carbon monoxide (CO), wherein the crude synthesis gas is initially generated in a synthesis gas generation stage and subsequently converted in a multi-stage CO conversion and thus elevated in terms of its hydrogen content. The crude synthesis gas has steam added to it as a reaction partner for the CO conversion and cooling of the converted synthesis gas affords an aqueous condensate.

Abstract: The invention relates to a process for producing hydrogen from a light hydrocarbon source, in which a synthesis gas is generated by steam methane reforming after desulfurization and optionally pre-reforming of the feedstock. The synthesis gas is enriched with hydrogen by steam conversion of carbon monoxide, and is subsequently purified in a pressure swing adsorption unit to give a pure H2 product and a residual gas mixture containing CH4, CO, H2 and CO2; in accordance with the invention, the conversion step is performed in a cooled reactor in which the heat of the conversion reaction is transferred to a fluid which feeds the burners of the reformer, or to the gas for reforming.

Abstract: The invention relates to a highly reactive, high-purity, free-flowing and dust-free lithium sulfide powder having an average particle size between 250 and 1,500 ?m and BET surface areas between 1 and 100 m2/g. The invention, furthermore, relates to a process for its preparation, wherein in a first step, lithium hydroxide monohydrate is heated in a temperature-controlled unit to a reaction temperature between 150° C. and 450° C. in the absence of air, and an inert gas is passed over or through it, until the residual water of crystallization content of the formed lithium hydroxide is less than 5 wt. % and in a second step, the anhydrous lithium hydroxide formed in the first step is mixed, overflowed or traversed by a gaseous sulfur source from the group consisting of hydrogen sulfide, elemental sulfur, carbon disulfide, mercaptans or sulfur nitrides.

Abstract: The invention generally relates to electrides and methods of making thereof. More specifically, the invention relates to a crystalline electride comprising: at least one positively charged layer comprising at least one alkaline earth metal subnitride represented by a formula A2N, wherein A comprises Mg, Sr, Ba, Ca, or a combination thereof, and one or more layers of anionic electrons; and having a thickness from greater than 0 nm to about 50 nm. Further, methods of making these electrides are further disclosed. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: A process comprising: subjecting a process gas containing NOx to a stage for absorption of NOx in a suitable absorption means, obtaining nitric acid and a tail gas containing nitrogen, argon and residual NOx; subjecting said tail gas to a treatment which comprises at least one NOx removal stage, obtaining a conditioned tail gas; subjecting at least a portion of said conditioned tail gas to a separation treatment, obtaining a product stream containing argon and a product stream containing nitrogen.

Abstract: Metal (II) phosphate powders, lithium metal phosphate powders for a Li-ion battery and methods for manufacturing the same are provided. The lithium metal phosphate powders are represented by the following formula (II): LiFe1-aMaPO4??(II) wherein M comprises at least one metal selected from the group consisting of Mn, Co, Ni, Cu, Cr, V, Mo, Ti, Zn, Zr, Tc, Ru, Rh, Pd, Ag, Cd, Pt, Au, Al, Ga, In, Be, Mg, Ca, Sr, B and Nb, 0.5<a?1, the lithium metal phosphate powders are composed of plural flake powders, and a length of each of the flake powders is ranged from 50 nm to 10 ?m.

Abstract: Process of acid attack with sulphuric acid of a phosphate source comprising calcium or not comprising calcium for a predetermined time period ranging from 20 to 180 minutes in the conditions wherein the molar ratio of sulphate from the sulphuric acid and possibly from the phosphate source to the calcium present in the phosphate source ranges from 0.6 to 0.8, and the content in P2O5 in the attack tank is of less than 6%.

Abstract: Disclosed is a bottom-up synthesis approach for the fabrication of gold nanoparticles composite carbon thin films based on in situ reduction of gold precursor within a photoresist matrix. This provides the possibility to accumulate noble metal nanostructures both on the surface as wells as in the bulk of a tough material like glassy carbon. With several advantages ranging from electronics, catalysis, optics and several other biofunctionalization technologies, this material is like a hybrid. Moreover, fabrication of micro and Nano level structures make it as a CMEMS and BIOMEMS relevant material for wide range of applications.

Abstract: An object is to maintain high friction state even after repeated use. A carbon nanotube composite includes: a vertically aligned carbon nanotube array composed of vertically oriented carbon nanotubes coated with amorphous carbon; and a base layer which has the vertically aligned carbon nanotube array fixed thereto. One end portion, which is one of the opposite end portions in the direction of orientation of the vertically oriented carbon nanotubes, is exposed on the outside of the base layer.

Abstract: Provided are a scroll preparing method using a two-dimensional material and a scroll prepared thereby. The scroll preparing method comprises preparing a two-dimensional material. The two-dimensional material is scrolled by providing an amphiphilic substance having a hydrophilic portion and a hydrophobic portion on the two-dimensional material. As a result, a scroll composite including the amphiphilic substance disposed inside a scroll structure is formed.

Abstract: Thin, highly oriented graphite of good quality can be produced by adjusting pressures to be applied to a laminate, i.e., a raw material, during the carbonizing step and during the graphitizing step.

Abstract: The present invention relates to a method for manufacturing activated carbon for electrode material, and, more specifically, to activated carbon having alkali metal content of 50 ppm or less for electrode material, and to a method for manufacturing the activated carbon.

Abstract: A compound ammonium fluoroborate, a nonlinear optical crystal of ammonium fluoroborate, and a preparation method and use thereof; the compound has the chemical formula of NH4B4O6F with a molecular weight of 176.28, and is prepared by a solid phase reaction process; the crystal has the chemical formula of NH4B4O6F with a molecular weight of 176.28, belongs to the orthorhombic system, and has a space group of Pna21 and the following unit cell parameters: a=7.615(3) ?, b=11.207(4) ?, c=6.604(3) ?, Z=4, V=563.6 ?3. The nonlinear optical crystal can be obtained by the method of the present invention. The present invention provides uses of the nonlinear optical crystal in producing harmonic light and a deep-ultraviolet frequency-multiplied light below 200 nm; and in making a frequency multiplication generator, a frequency up or down converter or an optical parametric oscillator.

Abstract: This invention relates generally to a process to perform controlled alkaline and acid treatments on inorganic porous solids, yielding superior physico-chemical and catalytic properties, whereas the particle and crystal size is not negatively influenced. Accordingly, the solids obtained in this fashion can be easily recovered from the alkaline solution. The latter being problematic in the state of the art.

Abstract: The present invention relates to a process for the preparation of a composition comprising a gold (111) chlorite-cyanide coordination compound, a composition comprising the gold (111) compound obtainable by this process, as well as the afore-mentioned composition for use in therapy, more particularly for use in the treatment of cancer.

Abstract: Provided are a dielectric, a capacitor and a semiconductor device that include the dielectric, and a method of preparing the dielectric, the dielectric including: a composition represented by Formula 1; and an oxide including a perovskite type crystal structure having a polar space group or a non-polar space group other than a Pbnm space group: <Formula 1> AxByO3-? wherein, in Formula 1, A is a monovalent, divalent, or trivalent cation, B is a trivalent, tetravalent, or pentavalent cation, and 0.5?x?1.5, 0.5?y?1.5, and 0???0.5.

Abstract: A floatation separation apparatus includes a stirring tank, a stirring pump installed in the stirring tank, a floatation tank into which flocculated water flows from the stirring tank through an overflow dam, a scraping device (scraper) configured to scrape floating substances in the floatation tank, a treated water tank into which treated water in the floatation tank flows, and a pump and a hose for returning the treated water in the treated water tank to a raw water tank. The stirring pump sucks air and water inside the stirring tank, and discharges water mixed with air bubbles to a lower part of the stirring tank. The height of the overflow dam is adjustable.

Abstract: A process of dissolving into to-be-treated water a peroxodisulfate and metal ions other than ions of alkali metals is performed by pouring equipment. An ultraviolet irradiation apparatus performs a process of treating the to-be-treated water, having the peroxodisulfate and the metal ions other than ions of alkali metals dissolved therein, with ultraviolet rays. By performing UV treatment on the to-be-treated water having the peroxodisulfate and metal ions dissolved therein, the inventive method and system achieve improved TOC decomposing performance and thus can particularly decompose a urea component in an efficient manner. Further, the to-be-treated water may be treated with an ion-exchange resin at a subsequent stage in such a manner that organic acids contained in the to-be-treated water having been subjected to the UV treatment are adsorbed to the ion exchange-resin, with the advantageous result that the concentration of TOC present in the to-be-treated water can be reduced.

Abstract: A system to produce reactive oxidative species in a fluid medium containing a source of Cl(I) by irradiating a solid photocatalyst suspended in the fluid medium or residing on a surface that is contactable by the fluid with electromagnetic radiation. The electromagnetic radiation can be in the UV, near-UV, visible, or near-IR consistent with the photocatalyst employed. The source of Cl(I) in certain embodiments is Cl2, HOCl, or H2NCl. The photocatalyst is g-C3N4, TiO2, BBiOBr, or any other solid insoluble photocatalyst.

Abstract: An ion exchanging unit exchanging ions contained in water includes a container for storing a plurality of ion exchange resins, a water supplying path through which to supply water to the container, a pure water discharging path through which to discharge water which has been ion-exchanged by the ion exchange resins, from the container, and a flow suppressing portion suppressing flow of the ion exchange resins by pressing downward the ion exchange resins stored in the container from above. The flow suppressing portion includes a pressing member placed on an upper surface of the ion exchange resins, the pressing member following the ion exchange resins which shrink more in volume as the ion exchange resins are used longer and then moving downward.

Abstract: To provide an electric vacuum cleaning apparatus and a cleaning head can continuously perform both of suction cleaning and wiping for disinfecting the surface to be cleaned together. The apparatus includes: an electric blower that generates suction vacuum pressure; a suction air passage equipped with a suction port and fluidly connected to a suction side of the electric blower; an electrolyzed-water generator that electrolyzes water to produce electrolyzed water containing hypochlorous acid; a wiping-member attachment to which a wiping member is detachably attached; and a supply mechanism that supplies the electrolyzed water to at least one of a surface to be cleaned and the wiping member that is attached to the wiping-member attachment.

Abstract: A method of promoting the treatment of coking wastewater using photocatalytic electrode coupled with microbial fuel cellin the technical field of coking wastewater treatment, energy-saving and resource utilization. La-ZnIn2S4/RGO/BiVO4 and silica sol were fixed and coated on stainless steel mesh to form conductive catalytic composite membrane electrode. HSO3?was added to coking wastewater. Graphite Carbon rods are inserted into the anodic chamber with microorganisms and connected the cathode with wires to form circuit loops. Halogen tungsten lamp was applied as light source to act on the catalytic electrode, forming a coupled system with photocatalytic electrode and microbial fuel cell for treating coking wastewater. The effects of La-ZnIn2S4/RGO/BiVO4 catalysts with different RGO contents on the catalytic degradation of coking wastewater were realized, and the effects of NaHSO3 and Na2SO4 solutions at the same concentration on the degradation of coking wastewater were also realized.

Abstract: A disc type electrocatalytic water treatment device, characterized in that: comprising: a housing having a water inlet and a water outlet, a plurality of cathode plates and anode plates sequentially and alternately stacked inside the housing, a central shaft passes through central holes of the cathode plates and anode plates and compress the cathode plates to form a disc-shaped structure while the cathode plate and the anode plate are separated at the central holes. A wastewater to be treated is guided to enter from the water inlet, flow inwardly and outwardly to sequentially pass through the cathode plate and the anode plate such that a passage route is formed, and finally flows out from the water outlet.

Abstract: The present invention relates to a continuous method for the production of hollow quartz-glass ingots and an apparatus for said method, whereby the hollow quartz-glass ingots are cooled on the internal surface.

Abstract: A method and apparatus for manufacturing a quartz glass ingot of large cross-sectional area by continuous flame-fusion whereby on-line crack-free cutting of the ingot is ensured by using the internal heat of the ingot to permit equilibration of the internal and surface temperatures while passing through one or more annealing chambers, thus ensuring controlled cooling to temperature at which it is possible to cut the ingot with a water-cooled saw.

Abstract: A mold for processing glass and a method for processing glass are disclosed. The mold is used for processing glass for processing a planar glass structure into a three-dimensional glass structure. The mold includes a lower mold part and an upper mold part. The lower mold part is made of material having a thermal expansion coefficient of approximately 5×10?6K˜approximately 7.58×10?6K. The upper mold part is made of material having a thermal expansion coefficient of approximately 8×10?6K˜approximately 28×10?6K. The upper mold part is capable of engaging with or separating from the lower mold part. When the upper mold part is engaged with the lower mold part, the upper mold part is engaged with the lower mold part cooperatively define a molding space for molding the three-dimensional glass structure.

Abstract: A mold for producing a barbed glass plate and a method for producing the barbed glass plate are disclosed. The barbed glass plate includes a body portion, a transition portion, and an extension portion. The body portion, the transition portion, and the extension portion cooperatively define a receiving space. The extension portion includes an external surface facing away from the receiving space. The mold includes a lower die and an upper die. The lower die includes a bottom wall and a side wall. The upper die includes a protrusion. When the upper die is engaged with the lower die, the protrusion protrudes into the cavity and is spaced apart from the side wall.

Abstract: A method for controlling discharging of a glass plate in a glass plate tempering technology process is provided. After a glass plate is fed into a heating furnace, a monitoring unit monitors and performs filtering on a working parameter of a heating element in real time, and then transmits the filtered working parameter to a control unit. The control unit compares the filtered working parameter with a specified threshold. After the working parameter reaches a maximum value or a minimum value, and then reaches the specified threshold during a subsequent change, the control unit sends an instruction to a drive mechanism. The drive mechanism acts to move the glass plate out of the heating furnace directly or after a time delay, so as to complete a glass plate heating process. The present disclosure changes a conventional time-based control method, reduces energy consumption, and improves quality of a tempered glass.

Abstract: An alkali-free glass of the present invention includes as a glass composition, in terms of mass %, 55% to 70% of SiO2, 15% to 25% of Al2O3, 0% to 5% of B2O3, 3% to 10% of MgO, 7% to 20% of SrO, and 0% to 5% of BaO, is substantially free of an alkali metal oxide, and has a strain point of more than 720° C.

Abstract: A composition for a glass material comprising, on an oxide basis: one or more network formers chosen from the group of silicon dioxide (SiO2) and phosphorous pentoxide (P2O5); one or more alkali metal oxides chose from the group consisting of lithium oxide (Li2O) and sodium oxide (Na2O); 8 to 15 percent by weight zirconium oxide (ZrO2); and one transition metal oxide consisting of 9 to 45 percent by weight niobium pentoxide (Nb2O5). In an embodiment, the composition consists of: 35 to 60 percent by weight silicon dioxide (SiO2); 9.25 to 15.0 percent by weight lithium oxide (Li2O); 0.5 to 2 percent by weight sodium oxide (Na2O); 8 to 15 percent by weight zirconium oxide (ZrO2); 0 to 3.5 percent by weight phosphorous pentoxide (P2O5); and 9 to 45 percent by weight niobium pentoxide (Nb2O5). In an embodiment, the glass material is a light guide for an augmented reality device.

Abstract: The application relates to bond materials for a grinding wheel, in particular a glass ceramic and a preparation method thereof, and a bond for the composite grinding wheel. The glass ceramic is prepared from raw materials comprising kaolin, silica, diboron trioxide, lithium superoxide, albite, potassium feldspar, talc, dolomite, phosphorus pentoxide, and yttrium oxide. A glass ceramic composed entirely of microcrystalline phases is obtained from the glass prepared by the above raw materials at 900-1020° C., achieving a complete conversion of the glass phase at a low temperature. The application also provides a bond for a composite grinding wheel, comprising glass ceramic and glass with mass ratio of (20-50):(50-80), the glass phase having a low flow temperature and, together with the glass ceramic phase, forming encapsulation of the abrasive particles, realizing low-temperature sintering of the grinding wheel.

Abstract: Glass fibers formed from the inventive composition may be used in applications that require high stiffness and have a specific modulus between 34 and 40 MJ/kg.

Abstract: A glass composition is provided that includes SiO2 in an amount from 50.0 to 65.0% by weight; Al2O3 in an amount from 18.0 to 23.0% by weight; CaO in an amount from 1 to 8.5% by weight; MgO in an amount from 9.0 to 14.0% by weight; Na2O in an amount from 0.0 to 1.0% by weight; K2O in an amount from 0.0 to 1.0% by weight; Li2O in an amount from 0.1 to 4.0% by weight; TiO2 in an amount from 0.0 to 2.5% by weight, Y2O3 in an amount from 0 to 10.0% by weight; La2O3 in an amount from 0 to 10.0% by weight; Ce2O3 in an amount from 0 to 5.0% by weight; and Sc2O3 in an amount from 0 to 5.0% by weight. Glass fibers formed from the inventive composition may be used in applications that require high stiffness and have elastic modulus between 88 and 115 GPa. Such applications include woven fabrics for use in forming wind turbine blades and aerospace structures.

Abstract: According to various embodiments described herein, an article comprises a glass or glass-ceramic substrate having a first major surface and a second major surface opposite the first major surface, and a via extending through the substrate from the first major surface to the second major surface over an axial length in an axial direction. The article further comprises a helium hermetic adhesion layer disposed on the interior surface; and a metal connector disposed within the via, wherein the metal connector is adhered to the helium hermetic adhesion layer. The metal connector coats the interior surface of the via along the axial length of the via to define a first cavity from the first major surface to a first cavity length, the metal connector comprising a coating thickness of less than 12 ?m at the first major surface.

Abstract: The present invention provides scalable, solution based processes for manufacturing electrochromic materials comprising metal oxide films for use in electrochromic devices. The electrochromic material comprises a transparent conductive substrate coated with an electrochromic metal oxide film, wherein the metal oxide film is formed by a process comprising the steps of: a) providing the conductive substrate; b) coating the substrate with a solution of one or more metal precursors; and c) exposing the coated substrate to near-infrared radiation, UV radiation and/or ozone in an aerobic atmosphere. The present invention also provides electrochromic devices incorporating these electrochromic materials.

Abstract: An article that includes: a glass-based substrate having opposing major surfaces; a crack mitigating stack disposed on one of the major surfaces; and a scratch-resistant film disposed on the crack mitigating stack that has an elastic modulus greater than or equal to the elastic modulus of the substrate. The stack comprises one or more bi-layers defined by: (a) a first layer comprising an organosilicate material, and (b) a second layer comprising an organosilicate material over the first layer, the first layer having a lower elastic modulus than the elastic modulus of the second layer. The film comprises at least one of a metal-containing oxide, a metal-containing oxynitride, a metal-containing nitride, a metal-containing carbide, a silicon-containing polymer, a carbon, a semiconductor, and combinations thereof. In addition, the article is characterized by an average flexural strength that is at least 70% of an average flexural strength of the substrate.

Abstract: A transparent heat-shielding/heat-insulating member including a transparent base substrate and a functional layer formed on the transparent base substrate. The functional layer includes an infrared reflective layer and a protective layer in this order from the transparent base substrate side. The infrared reflective layer includes a first metal suboxide layer or metal oxide layer, a metal layer, and a second metal suboxide layer or metal oxide layer in this order from the transparent base substrate side. The total thickness of the infrared reflective layer is ?25 nm. The thickness of the second metal suboxide layer or metal oxide layer is ?25% of the total thickness of the infrared reflective layer. The protective layer contains a single layer or multiple layers. At least the layer of the protective layer that is in contact with the second metal suboxide layer or metal oxide layer includes a corrosion inhibitor for metal.

Abstract: Cement slurries, cured cements, and methods of making cured cement and methods of using cement slurries are provided. The cement slurries have, among other attributes, an extended thickening time, leading to improved retardation, flowability, and pumpability and may be used, for instance, in the oil and gas drilling industry. The cement slurry comprises water, a cement precursor material, acrylic acid copolymer, zinc oxide, and a phosphonic acid-based thickener.

Abstract: In general, the present invention is directed to the use of particular phosphorus containing compounds for making a gypsum board. The phosphorus containing compound may be a phosphite or a phosphate having a certain formula. In this regard, the present invention is directed to a slurry for making a gypsum board wherein the slurry includes such phosphorus containing compound. The present invention is also directed to a method of making a gypsum board from the slurry as well as a resulting gypsum board.

Abstract: A multilayer ceramic capacitor includes: a ceramic body in which dielectric layers and first and second internal electrodes are alternately stacked; and first and second external electrodes formed on an outer surface of the ceramic body and electrically connected to the first and second internal electrodes, respectively. In a microstructure of the dielectric layer, dielectric grains are divided by a dielectric grain size into sections each having an interval of 50 nm, respectively, a fraction of the dielectric grains in each of the sections within a range of 50 nm to 450 nm is within a range of 0.025 to 0.20, and a thickness of the dielectric layer is 0.8 ?m or less.

Abstract: A tape casting slurry composition for preparing a silicon nitride sintered body is provided. The tape casting slurry composition exhibits a viscosity suitable for tape casting, and thus, can easily control the area and thickness of the prepared green sheet, thereby preparing a large area silicon nitride sintered body having a thickness of a circuit board without post-processing processes such as grinding, and the like. Therefore, according to the present invention, a silicon nitride sintered body can be prepared using low cost raw materials by a simplified process, thereby securing efficiency and economic feasibility of the preparation process.

Abstract: A sintered compact includes an alumina phase as a primary phase, and further includes an amorphous phase containing Si and Mn and a cordierite phase. The sintered compact has a porosity of higher than or equal to 1.1% and less than or equal to 5.0%. Preferably, I1/(I1+I2) is greater than or equal to 0.20 and less than or equal to 0.45, where I1 is the strength of the main peak of cordierite obtained by an XRD method, and I2 is the strength of the main peak of alumina.